Compressed perovskite aqueous mixtures near their phase transitions show very high permittivities: New prospects for high-field MRI dielectric shimming.

Purpose: Perovskites are greatly used nowadays in many technological applications because of their high permittivity, more specifically in the form of aqueous solutions, for MRI dielectric shimming. In this study, full dielectric characterizations of highly concentrated CaTiO /BaTiO water mixtures were carried out and new permittivity maxima was reached.

Methods: Permittivity measurements were done on aqueous solutions from 0%v/v to dry powder.